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Finding the Fourth Proportional to 402,701.60, 604,513.20 and 236,583.20

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Solution

The fourth proportional to 402,701.60, 604,513.20 and 236,583.20 is: 355,145.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,701.60 : 604,513.20 = 236,583.20 : x
  2. Step 2: Convert to fraction form
    402,701.60/604,513.20 = 236,583.20/x
  3. Step 3: Cross multiply
    402,701.60x = 604,513.20 × 236,583.20
  4. Step 4: Simplify right side
    402,701.60x = 143,017,667,298.24
  5. Step 5: Solve for x
    x = 143,017,667,298.24/402,701.60
  6. Step 6: Final answer
    x = 355,145.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.